Fig. 1
Exemplary depiction of FDG uptake in the bowel of two patients, representing quantitative and subjective assessment. A Uptake in the ascending colon (arrow); intensity: moderate, focality: diffuse, probability of being pathologic: probable physiologic, theoretical endoscopy recommendation: no. B Uptake in the sigmoid colon (arrow); intensity: high, focality: focal, probability of being pathologic: probable pathologic, theoretical endoscopy recommendation: yes. Standard sized spherical measurement regions (VOI) of SUVmean shown as circles with a diameter of 1.0 cm in ascending colon, descending colon (both A) and rectum (B)